Panasonic KX-NTV150NE Service Manual ▷ View online
10
KX-NTV150 Series
7 Troubleshooting Guide
7.1.
No power supplied by PoE or AC Adaptor
7.2.
No image
1. Connect Ethernet cable with PoE or AC Adaptor to Main Board.
2. Turn the multimeter to DCV setting.
3. Measure the voltage between TP20_5V9V and TP14_GND.
4. Check if the value is DC+5V (+4.75V ~ +5.25V) in case of power
2. Turn the multimeter to DCV setting.
3. Measure the voltage between TP20_5V9V and TP14_GND.
4. Check if the value is DC+5V (+4.75V ~ +5.25V) in case of power
supplied by PoE, or check if the value isDC+9V (+8.1V ~ +9.9V)
in case of power supplied by AC Adaptor.
in case of power supplied by AC Adaptor.
5. Disconnect Ethernet cable with PoE or AC Adaptor.
Malfunction
Main Board exchange.
1. Check Main Board PCB’A (J1)Connect.
2. Check if Main Board PCB'A _U1 is damaged.
3. Check if Sensor board functions normally.
*U1-(SOC, VVTK8112, VATICS)
*J1-(PIN HEADER, T-DPH20SD2GT-C0, DISNT)
*J1-(PIN HEADER, T-DPH20SD2GT-C0, DISNT)
Malfunction
Main Board exchange at first.
If trouble is not closed yet, Sensor Board need to exchange too.
If trouble is not closed yet, Sensor Board need to exchange too.
J1
U1
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KX-NTV150 Series
7.3.
No Audio
7.4.
Wrong date
7.5.
Fail connecting to cable LAN
1. Check if Main Board PCB'A _U26, U14 is damage.
*U26-(IC,FM1288-GE410,FORTEMEDIA)
*U14-(IC,TPA2011D1YFF,TI)
*U14-(IC,TPA2011D1YFF,TI)
Malfunction
Main Board exchange at first.
If trouble is not closed yet, Front cover Assy need to exchange too.
If trouble is not closed yet, Front cover Assy need to exchange too.
1. Check if Main BD PCB'A_ D19 is damaged.
2. Measuring if input voltage of BT2 is DC3.3V by multimeter.
*D19-(DIODE, BAT54C2-0-T5-G, CYSTEK)
*BT2-
(GCAP, 0.2F, 3.3V, -20~+80%, ELNA KL series)
*BT2-
(GCAP, 0.2F, 3.3V, -20~+80%, ELNA KL series)
Note:
BT2 pin: 260°C±5°C
soldering time: 2Sec±0.5Sec
soldering time: 2Sec±0.5Sec
Malfunction
Main Board exchange.
1. Check if Main Board PCB’A _U1, U6 is damaged.
*U1-(SOC, VVTK8112, VATICS)
*U6-(IC, KSZ8051MNL, MICREL)
*U6-(IC, KSZ8051MNL, MICREL)
Malfunction
Main Board exchange.
U26
U14
D19
BT2
U6
U1
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KX-NTV150 Series
7.6.
Fail upgrading firmware
1. Check if Main Board PCB’A _U1 is damage.
*U1-(SOC, VVTK8112, VATICS)
Malfunction
Main Board exchange.
U1
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KX-NTV150 Series
8 Disassembly and Assembly Instructions
8.1.
Disassembly procedure
Step1
A. Remove 2 screws of back cover.
Step2
A. Open front cover from back cover.
B. Remove connector of MIC and speaker (circle in the picture).
B. Remove connector of MIC and speaker (circle in the picture).
Step3
A. Remove 4 screw of main board (red circle).
B. Remove 3 screws of sensor board (green circle).
C. Remove connector of antenna (yellow circle).
B. Remove 3 screws of sensor board (green circle).
C. Remove connector of antenna (yellow circle).
Step4
A. Take out sensor board and main board.
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